The heterogenous structure of the specialized tissue in the heart as a factor in atrioventricular conduction delay.
D000200:Action Potentials; D000818:Animals; D001001:Anura; D004558:Electric Stimulation; D006329:Heart Conduction System / Q000166:cytology* / Q000502:physiology*; D066298:In Vitro Techniques; D008564:Membrane Potentials; D011817:Rabbits; D013564:Sympathetic Nervous System / Q000502:physiology; D014630:Vagus Nerve / Q000502:physiology